Agilent/Keysight 11852A

The Agilent/Keysight 11852A is a minimum loss pad that bridges 50-ohm and 75-ohm RF systems while maintaining signal integrity through controlled attenuation. This impedance-matching adapter introduces 5.7 dB of insertion loss—a critical characteristic for accurate RF measurement and testing in mixed-impedance environments.

– Technical Specifications

• Impedance: 50 Ohm to 75 Ohm
• Frequency Range: DC to 1.3 GHz
• Insertion Loss: 5.7 dB (typical)
• Return Loss: >27 dB
• Maximum Input Power: +24 dBm
• Attenuation: 5.7 dB
• Flatness: 0.1 dB or less
• Electrical Length: 50.2 mm (1.98 in)
• Overall Length: 60.1 mm (2.37 in)
• Diameter: 22.0 mm (0.87 in)

– Key Features

• Type N connectors: Female (50 Ohm) to Male (75 Ohm)
• Precise impedance transformation with minimal ripple across operating band
• Flat response within 0.1 dB ensures predictable signal conditioning
• Compact form factor suitable for laboratory and field installations
• Handles signals up to +24 dBm input without degradation

– Typical Applications

• RF and microwave test and measurement systems
• Signal conditioning in impedance mismatch scenarios
• Laboratory setups requiring controlled, calibrated attenuation
• Mixed-impedance circuit integration where signal integrity cannot be compromised

– Compatibility & Integration

The 11852A integrates directly with Type-N connector infrastructure common across RF test equipment. Its 50.2 mm electrical length and specified return loss performance make it suitable for precision measurement environments where both attenuation and impedance matching must be characterized and repeatable.